List of practice Questions

Explain the three central problems of an economy: What to produce, How to produce, and For whom to produce?
Distinguish between fixed cost and variable cost.
What is GST? Explain its features and advantages.
Explain the concept of direct tax and indirect tax with examples.
Prepare a simple format of a cost sheet and explain its components.
Define cost. Explain the elements of cost with examples.
Which of the following is a direct cost?
Define Price Elasticity of Demand and explain any three factors that affect it.
What are the key features of a firm operating under Perfect Competition?
Distinguish between Fixed Costs and Variable Costs with examples.
What happens to equilibrium price and quantity when there is a simultaneous increase in both demand and supply?
Let one end of focal chord of the parabola \( y^2 = 16x \) be \( (16,16) \).
If \( P(\alpha,\beta) \) divides this focal chord internally in the ratio \( 5:2 \), then the minimum value of \( \alpha + \beta \) is equal to
Assertion (A): D(+)-Glucose is dextrorotatory in nature.
Reason (R): (+) represents dextrorotatory nature and D represents its configuration.
Which of the following Grignard Reagent will be used to prepare cyclohexylmethanol when treated with methanal?
Given the sequence of numbers 2, 3, 5, 7, 11, 13, 17, 19, 23, _ _ _ _ _. What are the next two numbers?
The sum of squares of two positive numbers is 100. If one number exceeds the other by 2, find the numbers.
The drainage system in your locality needs repair. Write a letter to the Municipal Commissioner stating the problems caused due to this. Suggest solutions to improve the situation.
Aman walks 1 km towards East and then he turns to South and walks 5 km. Again he turns to East and walks 2 km, after this he turns to North and walks 9 km. Now, how far is he from his starting point?
Given below is a pyramid showing various trophic levels in an ecosystem:
(a) From the organisms listed below, identify which one is to be placed at which trophic level:
Deer, Grass, Lion, Snake, Rabbit
(b) Discuss the reason why primary consumers will have more energy as compared to secondary consumers?
(c) Why is the base of the pyramid broad?
A spring of force constant $15\,\text{N/m}$ is cut into two pieces. If the ratio of their lengths is $1:3$, then the force constant of the smaller piece is ___ $\text{N/m}$.
Which of the reactions is used in the conversion of a ketone into hydrocarbon?
Observe the painting and answer the following:
(a) Write the name of artist, painting, a human value and medium.
(b) Write in detail its subject-matter.
(c) Appreciate its compositional arrangement aesthetically in four points.
A trader has three different types of oils of volume \(870 \text{ l}\), \(812 \text{ l}\) and \(638 \text{ l}\). Find the least number of containers of equal size required to store all the oil without getting mixed.
What happens when acidic solution of potassium permanganate is allowed to stand for sometime ? Give the equation involved. What is this type of reaction called ?

The value of the determinant 

is: